Bar clip



July 10, 1928. 1,677,066

w. E. WHITE BAR CLIP Filed Dec. 12, 1925 Patented July 10, 1928.

PATENT OFFICE.

WILLIAM E. WHITE, OF CHICAGO, ILLINOIS.

BAR CLIP.

Application filed December 12, 1925. Serial No. 75,113.

My invention relates to concrete reinforcing devices and particularly to spacers for use in connection with the placing of concrete reinforcing bars.

It has been common in the construction of bar spacers. to provide, at each chair, a length of malleable wire, adapted to be twisted around the bar for the purpose of holding it in its proper relation. The man ufacturc of the spacer with its attached lengths of wirc,.together with the operation of twisting the wires around the bars involved considerable labor which may be largely eliminated by the employment of the device here disclosed.

An object of the construction here disclosed is to provide permanent, rigid, resilient, fastening clips with which the bars may be associated without any twisting or other labor effort'other than that of forcing the bars into the pocket provided'therefor. The clip is of such substantial form and is so designed and attached that it will not become displaced in handling or shipping.

The invention will be more readily understood by reference to the accompanying drawing, in which;

Fig. 1 is a side elevation of a spacer and attached bar clip, constructed in accordance with my invention;

Fig. 2 is a plan view thereof, and

Fig. 3 is a sectional view on the line 3-3 of Fig. 1;

In the drawings, I have illustrated the spacer described and claimed in my copending allowed application, Serial No. 608,864, filed December 26, 1922. This spacer consists of a continuous length of wire, indicated b the numerals, 10, 11, that is bent to provice chairs at spaced intervals. The chairs consist of outwardly and downward- 1y extending legs, 12, and a horizontally extending base, 13. The base is deflected upwardly at a point between its ends to form a recess, 14. The chair structure is of generally triangular form in end elevation and forms a substantial structure. In order to increase the resistance to vertically applied loads, the adjacent ends of the wire sections 10, 11, are overlapped as at 15 in Fig. 2, thus completing the triangle.

The bar clip of my invention consists of a length of wire, the ends, 16, 17 of which are bent around and rigidly secured to the longitudinal wires, 10, 11 as at 18, 19. Of course other fastening means than the one shownniay be utilized if desired. The in terniediate portion of the wire is bent in the form of a loop, the sides, 20, 21 of the loop being oppositely and outwardly bent at a point intermediate their ends to form a bar pocket. 22, for the reception of a reinforcing bar or rod 23. while the lower end or connecting portion, 2-15 of the loop occupics the rec as. l t in the base, 13. The mouth or entrance opening, 25, of the pocket is of restricts t. sine relative to the diameter of the bar, thus necessitating the springing or bending of the clip elements in order to admit the bar Preferably therefore, the

clip is composed of relatively resilient wire in order that it may resume its original position after a bar has been forced to its seat.

It will be noted that the ends, 16, 17, are oppositely diagonally disposed and constitute braces for resisting lateral lnovel'nent of the sides of the loop. This necessitates the bending or deflection of the wire on a relatively short radius in order to insert or remove the bar. Thus a strong and rigid fastening element is provided by the use of wire of comparatively small gauge.

The attachment of the bar clip to the spacer element is simply performed by a machine operation and the cost thereof is small. The labor cost in installing the bars is insignificant relative to the cost where a fastening wire must be twisted over the bar.

The exact form of the spacing element is not essential so far as the invention here claimed is concerned, as the bar clip may be applied to other forms of spacers than the one shown, and the scope of the invention should not be limited except as indicated in the appended claims.

I claim:

1. In a device of the class described, the,

combination of chairs. and wires extending oppositely therefrom, and a bar clip consisting of a length of material, the ends of which are attached to the longitudinal wire at opposite sides of the chair and the intermediate portion of which is in the form of an open top loop, the closed end of the loop passing beneath the chair and the open portion of the loop extending above the chair and acting as a pocket for a bar.

2. In a spacer, the combination of a continuous wire having chairs formed at spaced intervals thereof, and a bar clip consisting of a continuous wire having a loop that straddles the chair beneath the same and provides a pocket for a bar above the chair, the ends of the looped wire extending diagonally from the loop and being attached to the continuous wire at opposite sides of the chair.

3. The combination with a spacer oomoosed of wire having chairs formed therein, of a bar clip, consisting of a length of resilient wire, doubled on itself to provide a loop adapted to straddle the chair and provide a pocket for a bar above the chair, the ends of the resilient wire being, rebent to occupy oppositely extending diagonal positions. the extremities oi the wire being twisted around the wire of the spacer.

4. In a spacer, the combination of a longitudinal wire and attaehed chairs. and a bar clip consistinu of a lensrth of wire, the ends of which are attached to the longitudinal wire at opposite sides of the chairs and the intermediate portion of which is looped to provide a pocket for a, bar. the entrance of the bar into the pocket being effected by springing the wire and widening the mouth of the loop.

5. In a device of the class described, the combination of chairs, and members for laterally spacin" the chairs, and bar clips composed oi. resilient material. bent into U- shape and provided with .rebent extremities, the ends of the rebent portions being secured to the spacing members on opposite sides of the chairs, the connecting lnemliier of the U-shaped clip extending beneath the chairs, the clips extending above the chairs, and lorl'ning pockets for receiving a bar.

(5. In a device of the class described, the combination of chairs andv members for laterally spacing: the chairs, and bar clips composed oi resilient material bent into U shape and provided with braces extending diagonally dowmvard from the ends of the arms of the U and conneeted to the spacing members on opposite sides of the chairs the arms of the U extending above the chairs and forming pockets for receiving a bar.

In testimony whereof I have aliixed my signature.

WILLIAM E. WHITE. I 

